C4A

Non-Billable

Merkel cell carcinoma

C4A should not be used for reimbursement purposes as there are multiple sub-diagnoses that fall under this code. Please refer to the sub-diagnoses below.

Related Diagnoses

  • C4A.0Merkel cell carcinoma of lip
  • C4A.1Merkel cell carcinoma of eyelid, including canthus
  • C4A.2Merkel cell carcinoma of ear and external auricular canal
  • C4A.3Merkel cell carcinoma of other and unspecified parts of face
  • C4A.4Merkel cell carcinoma of scalp and neck
  • C4A.5Merkel cell carcinoma of trunk
  • C4A.6Merkel cell carcinoma of upper limb, including shoulder
  • C4A.7Merkel cell carcinoma of lower limb, including hip
  • C4A.8Merkel cell carcinoma of overlapping sites
  • C4A.9Merkel cell carcinoma, unspecified
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